Question

One GHG contributes $6\%$ to total global warming, other contributes to $20\%$; they are.

• A. $N{O}_2$ and $C{O}_2$
• B. $N_{2}O$ and CFCs
• C. CFCs and methane
• D. $N_{2}O$ and methane
• E. $C{O}_2$ and CFCs

Answer 1

The correct option is D $N_{2}O$ and methane

The relative contribution of various greenhouse gases to total global warming are as follows:

Methane: 20%

CFCs(Chloro-fluoro-carbons): 14%

N${}_2$O: 6%

Carbon dioxide: 60%

So, the correct answer is 'Option D- N${}_2$O and methane'.